Rooms

Each zone is comprised of multiple rooms in a grid layout. All non-special rooms contain enemies and have a high likelihood of containing a shrine. A room cannot be exited while there are alive enemies in it, even if they spawned afterwards.

Special rooms

Some rooms start with no enemies and specially marked in the minimap.

Arena

Has a lever that can be used up to 3 times to spawn enemies. When defeated, a chest will spawn.

Bank

Can deposit or withdraw coins.

Boss

Contains the boss and the portal to the next area. Guaranteed to spawn.

Golden chest

Contains a locked chest. Sometimes has an extra chest behind a wall that deals 12.5 damage when walked through. Guaranteed to spawn.

Huginn's shop

Sells equipment, healing and stat boosts.

Library

Contains an ability book or scroll. Requires a key to open.

Muinn's armory

Sells weapons and clip improvements.

Treasure room

Contains 4 equipment items. Whenever one is picked up, the other 4 will lower into bottomless pits.